Does IPsec suppose to reistablish automaticall afte the outage or not?

I have SonicWall with 6 IPsec tunnels to 6 remote sites with pfSenses. When there is an outage and either Sonicwall or pfSense comes back online they don't re-establish the connection. Is that just the way it is, I just log manually into each pfSense and do "connect" in IPsec status. Is there some sort of rule I have to add to do it automatically?